The position of the centre of mass of a uniform semi-circular wire of radius R placed in x - y plane with…

The position of the centre of mass of a uniform semi-circular wire of radius $R$ placed in $x-y$ plane with its centre at the origin and the line joining its ends as $x-$axis is given by, $\left(0, \frac{xR}{\pi }\right).$ Then, the value of $\left|x\right|$ is $\underline{ }.$